64200497 has 2 divisors, whose sum is σ = 64200498. Its totient is φ = 64200496.

The previous prime is 64200469. The next prime is 64200511. The reversal of 64200497 is 79400246.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56310016 + 7890481 = 7504^2 + 2809^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64200497 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64200407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32100248 + 32100249.

It is an arithmetic number, because the mean of its divisors is an integer number (32100249).

Almost surely, 2^64200497 is an apocalyptic number.

It is an amenable number.

64200497 is a deficient number, since it is larger than the sum of its proper divisors (1).

64200497 is an equidigital number, since it uses as much as digits as its factorization.

64200497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 64200497 is about 8012.5212636223. The cubic root of 64200497 is about 400.4172666533.

The spelling of 64200497 in words is "sixty-four million, two hundred thousand, four hundred ninety-seven".